<!DOCTYPE html>
<html>
<head>
	<title></title>
</head>
<body>

<script type="text/javascript" src="js4-3-1.js"></script>
<script type="text/javascript" src="js4-3-2.js"></script>
<script type="text/javascript">

console.error("module1 开始");
module1.m1();
module1.m2();
console.error("module1 结束");

console.error("module2 开始");
module2.m1();
module2.m2();
module2.m3();
console.error("module2 结束");

</script>

</body>
</html>